This document specifies a method for the electrochemical measurement of ion transfer resistance of the rust layer formed on weathering steel alloys in order to assess their protective properties against corrosion thereafter. This method uses an electrochemical AC impedance measurement, together with harmonic analysis, to identify the ion transfer resistance, and a rust thickness measurement to characterize the stability of the protective rust layer in terms of corrosion protection under used environments.
Status : PublishedPublication date : 2020-06
Edition : 1Number of pages : 14
Technical Committee:Corrosion of metals and alloys
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